./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-43.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 795f4667c1e1102b044359aec08de90b52cc6317a469c691f5b4c1088e37925d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 04:29:17,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 04:29:17,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 04:29:17,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 04:29:17,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 04:29:17,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 04:29:17,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 04:29:17,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 04:29:17,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 04:29:17,396 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 04:29:17,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 04:29:17,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 04:29:17,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 04:29:17,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 04:29:17,397 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 04:29:17,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 04:29:17,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 04:29:17,398 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 04:29:17,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 04:29:17,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 04:29:17,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 04:29:17,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 04:29:17,399 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 04:29:17,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:29:17,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 04:29:17,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 04:29:17,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 04:29:17,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 04:29:17,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 04:29:17,401 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795f4667c1e1102b044359aec08de90b52cc6317a469c691f5b4c1088e37925d [2025-03-17 04:29:17,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 04:29:17,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 04:29:17,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 04:29:17,632 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 04:29:17,632 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 04:29:17,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-43.i [2025-03-17 04:29:18,746 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c98f34c7/e6a067aca1384f688a1c983b918aee65/FLAG9b1b7eda1 [2025-03-17 04:29:18,990 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 04:29:18,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-43.i [2025-03-17 04:29:19,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c98f34c7/e6a067aca1384f688a1c983b918aee65/FLAG9b1b7eda1 [2025-03-17 04:29:19,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c98f34c7/e6a067aca1384f688a1c983b918aee65 [2025-03-17 04:29:19,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 04:29:19,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 04:29:19,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 04:29:19,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 04:29:19,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 04:29:19,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f04cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19, skipping insertion in model container [2025-03-17 04:29:19,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 04:29:19,478 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-43.i[916,929] [2025-03-17 04:29:19,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:29:19,639 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 04:29:19,650 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-43.i[916,929] [2025-03-17 04:29:19,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:29:19,719 INFO L204 MainTranslator]: Completed translation [2025-03-17 04:29:19,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19 WrapperNode [2025-03-17 04:29:19,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 04:29:19,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 04:29:19,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 04:29:19,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 04:29:19,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,803 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 526 [2025-03-17 04:29:19,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 04:29:19,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 04:29:19,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 04:29:19,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 04:29:19,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,874 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 04:29:19,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,902 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 04:29:19,940 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 04:29:19,941 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 04:29:19,941 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 04:29:19,943 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (1/1) ... [2025-03-17 04:29:19,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:29:19,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:19,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 04:29:19,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 04:29:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 04:29:19,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 04:29:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 04:29:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 04:29:19,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 04:29:19,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 04:29:20,094 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 04:29:20,096 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 04:29:20,893 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L375: havoc property_#t~bitwise44#1;havoc property_#t~short45#1;havoc property_#t~short46#1;havoc property_#t~bitwise47#1;havoc property_#t~short48#1;havoc property_#t~ite53#1;havoc property_#t~bitwise49#1;havoc property_#t~ite52#1;havoc property_#t~ite51#1;havoc property_#t~bitwise50#1;havoc property_#t~short54#1;havoc property_#t~bitwise55#1;havoc property_#t~short56#1; [2025-03-17 04:29:20,987 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2025-03-17 04:29:20,988 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 04:29:21,016 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 04:29:21,016 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 04:29:21,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:29:21 BoogieIcfgContainer [2025-03-17 04:29:21,017 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 04:29:21,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 04:29:21,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 04:29:21,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 04:29:21,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:29:19" (1/3) ... [2025-03-17 04:29:21,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7864a1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:29:21, skipping insertion in model container [2025-03-17 04:29:21,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:29:19" (2/3) ... [2025-03-17 04:29:21,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7864a1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:29:21, skipping insertion in model container [2025-03-17 04:29:21,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:29:21" (3/3) ... [2025-03-17 04:29:21,048 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-43.i [2025-03-17 04:29:21,062 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 04:29:21,063 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-43.i that has 2 procedures, 219 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 04:29:21,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 04:29:21,126 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f9274db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 04:29:21,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 04:29:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 153 states have (on average 1.4836601307189543) internal successors, (227), 154 states have internal predecessors, (227), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-17 04:29:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2025-03-17 04:29:21,152 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:21,152 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:21,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:21,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:21,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1242157597, now seen corresponding path program 1 times [2025-03-17 04:29:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:21,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624833277] [2025-03-17 04:29:21,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:21,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:21,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 408 statements into 1 equivalence classes. [2025-03-17 04:29:21,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 408 of 408 statements. [2025-03-17 04:29:21,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:21,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2025-03-17 04:29:21,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:21,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624833277] [2025-03-17 04:29:21,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624833277] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:29:21,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577965635] [2025-03-17 04:29:21,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:21,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:21,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:21,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:29:21,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 04:29:21,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 408 statements into 1 equivalence classes. [2025-03-17 04:29:21,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 408 of 408 statements. [2025-03-17 04:29:21,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:21,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:21,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 04:29:21,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:29:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2025-03-17 04:29:21,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 04:29:21,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577965635] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:29:21,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 04:29:21,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 04:29:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923164647] [2025-03-17 04:29:21,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:29:21,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 04:29:21,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:22,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 04:29:22,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:29:22,018 INFO L87 Difference]: Start difference. First operand has 219 states, 153 states have (on average 1.4836601307189543) internal successors, (227), 154 states have internal predecessors, (227), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2025-03-17 04:29:22,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:22,084 INFO L93 Difference]: Finished difference Result 435 states and 767 transitions. [2025-03-17 04:29:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 04:29:22,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) Word has length 408 [2025-03-17 04:29:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:22,096 INFO L225 Difference]: With dead ends: 435 [2025-03-17 04:29:22,097 INFO L226 Difference]: Without dead ends: 217 [2025-03-17 04:29:22,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:29:22,104 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:22,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 338 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 04:29:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-03-17 04:29:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2025-03-17 04:29:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 152 states have (on average 1.4605263157894737) internal successors, (222), 152 states have internal predecessors, (222), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-17 04:29:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 348 transitions. [2025-03-17 04:29:22,182 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 348 transitions. Word has length 408 [2025-03-17 04:29:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:22,183 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 348 transitions. [2025-03-17 04:29:22,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2025-03-17 04:29:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 348 transitions. [2025-03-17 04:29:22,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2025-03-17 04:29:22,193 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:22,194 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:22,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 04:29:22,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 04:29:22,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:22,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:22,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1860614206, now seen corresponding path program 1 times [2025-03-17 04:29:22,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:22,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871425300] [2025-03-17 04:29:22,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:22,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:22,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 408 statements into 1 equivalence classes. [2025-03-17 04:29:22,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 408 of 408 statements. [2025-03-17 04:29:22,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:22,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2025-03-17 04:29:22,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:22,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871425300] [2025-03-17 04:29:22,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871425300] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:29:22,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:29:22,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 04:29:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435950734] [2025-03-17 04:29:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:29:22,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 04:29:22,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:22,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 04:29:22,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:29:22,989 INFO L87 Difference]: Start difference. First operand 217 states and 348 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-03-17 04:29:23,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:23,396 INFO L93 Difference]: Finished difference Result 759 states and 1209 transitions. [2025-03-17 04:29:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 04:29:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 408 [2025-03-17 04:29:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:23,405 INFO L225 Difference]: With dead ends: 759 [2025-03-17 04:29:23,405 INFO L226 Difference]: Without dead ends: 543 [2025-03-17 04:29:23,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 04:29:23,408 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 433 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:23,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 1113 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 04:29:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2025-03-17 04:29:23,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 519. [2025-03-17 04:29:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 390 states have (on average 1.4897435897435898) internal successors, (581), 390 states have internal predecessors, (581), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2025-03-17 04:29:23,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 833 transitions. [2025-03-17 04:29:23,494 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 833 transitions. Word has length 408 [2025-03-17 04:29:23,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:23,496 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 833 transitions. [2025-03-17 04:29:23,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-03-17 04:29:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 833 transitions. [2025-03-17 04:29:23,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2025-03-17 04:29:23,503 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:23,503 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:23,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 04:29:23,504 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:23,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:23,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1450217967, now seen corresponding path program 1 times [2025-03-17 04:29:23,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:23,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688662395] [2025-03-17 04:29:23,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:23,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:23,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 409 statements into 1 equivalence classes. [2025-03-17 04:29:23,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 409 of 409 statements. [2025-03-17 04:29:23,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:23,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2025-03-17 04:29:23,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:23,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688662395] [2025-03-17 04:29:23,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688662395] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:29:23,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:29:23,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 04:29:23,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045425224] [2025-03-17 04:29:23,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:29:23,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 04:29:23,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:23,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 04:29:23,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 04:29:23,905 INFO L87 Difference]: Start difference. First operand 519 states and 833 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-03-17 04:29:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:24,207 INFO L93 Difference]: Finished difference Result 1408 states and 2256 transitions. [2025-03-17 04:29:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 04:29:24,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2025-03-17 04:29:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:24,216 INFO L225 Difference]: With dead ends: 1408 [2025-03-17 04:29:24,217 INFO L226 Difference]: Without dead ends: 890 [2025-03-17 04:29:24,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 04:29:24,221 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 270 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:24,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 980 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 04:29:24,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2025-03-17 04:29:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 874. [2025-03-17 04:29:24,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 681 states have (on average 1.5066079295154184) internal successors, (1026), 681 states have internal predecessors, (1026), 189 states have call successors, (189), 3 states have call predecessors, (189), 3 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 04:29:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1404 transitions. [2025-03-17 04:29:24,313 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1404 transitions. Word has length 409 [2025-03-17 04:29:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:24,314 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1404 transitions. [2025-03-17 04:29:24,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-03-17 04:29:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1404 transitions. [2025-03-17 04:29:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2025-03-17 04:29:24,322 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:24,322 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:24,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 04:29:24,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:24,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 171817384, now seen corresponding path program 1 times [2025-03-17 04:29:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:24,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620871528] [2025-03-17 04:29:24,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:24,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:24,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:24,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:24,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:24,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 27 proven. 159 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2025-03-17 04:29:25,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:25,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620871528] [2025-03-17 04:29:25,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620871528] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:29:25,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146219763] [2025-03-17 04:29:25,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:25,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:25,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:25,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:29:25,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 04:29:25,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:25,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:25,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:25,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:25,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 04:29:25,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:29:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 1988 proven. 159 refuted. 0 times theorem prover too weak. 5665 trivial. 0 not checked. [2025-03-17 04:29:26,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 04:29:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 27 proven. 159 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2025-03-17 04:29:26,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146219763] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 04:29:26,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 04:29:26,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-03-17 04:29:26,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398394104] [2025-03-17 04:29:26,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 04:29:26,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 04:29:26,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:26,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 04:29:26,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 04:29:26,801 INFO L87 Difference]: Start difference. First operand 874 states and 1404 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 2 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) [2025-03-17 04:29:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:27,151 INFO L93 Difference]: Finished difference Result 1654 states and 2638 transitions. [2025-03-17 04:29:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 04:29:27,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 2 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) Word has length 410 [2025-03-17 04:29:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:27,157 INFO L225 Difference]: With dead ends: 1654 [2025-03-17 04:29:27,157 INFO L226 Difference]: Without dead ends: 898 [2025-03-17 04:29:27,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 817 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-03-17 04:29:27,159 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 184 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:27,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 669 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 04:29:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2025-03-17 04:29:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 886. [2025-03-17 04:29:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 690 states have (on average 1.491304347826087) internal successors, (1029), 690 states have internal predecessors, (1029), 189 states have call successors, (189), 6 states have call predecessors, (189), 6 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 04:29:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1407 transitions. [2025-03-17 04:29:27,226 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1407 transitions. Word has length 410 [2025-03-17 04:29:27,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:27,228 INFO L471 AbstractCegarLoop]: Abstraction has 886 states and 1407 transitions. [2025-03-17 04:29:27,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 2 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 2 states have call predecessors, (117), 2 states have call successors, (117) [2025-03-17 04:29:27,228 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1407 transitions. [2025-03-17 04:29:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2025-03-17 04:29:27,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:27,231 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:27,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 04:29:27,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-17 04:29:27,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:27,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1011529913, now seen corresponding path program 1 times [2025-03-17 04:29:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:27,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459267811] [2025-03-17 04:29:27,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:27,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:27,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:27,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:27,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:27,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 198 proven. 168 refuted. 0 times theorem prover too weak. 7446 trivial. 0 not checked. [2025-03-17 04:29:28,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459267811] [2025-03-17 04:29:28,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459267811] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:29:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437289638] [2025-03-17 04:29:28,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:28,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:28,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:28,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:29:28,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 04:29:28,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:28,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:28,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:28,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:28,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 04:29:28,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:29:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 5013 proven. 168 refuted. 0 times theorem prover too weak. 2631 trivial. 0 not checked. [2025-03-17 04:29:29,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 04:29:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 198 proven. 171 refuted. 0 times theorem prover too weak. 7443 trivial. 0 not checked. [2025-03-17 04:29:30,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437289638] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 04:29:30,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 04:29:30,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2025-03-17 04:29:30,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762226659] [2025-03-17 04:29:30,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 04:29:30,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 04:29:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:30,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 04:29:30,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2025-03-17 04:29:30,116 INFO L87 Difference]: Start difference. First operand 886 states and 1407 transitions. Second operand has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 6 states have call successors, (133), 3 states have call predecessors, (133), 7 states have return successors, (134), 6 states have call predecessors, (134), 6 states have call successors, (134) [2025-03-17 04:29:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:30,712 INFO L93 Difference]: Finished difference Result 1690 states and 2650 transitions. [2025-03-17 04:29:30,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 04:29:30,712 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 6 states have call successors, (133), 3 states have call predecessors, (133), 7 states have return successors, (134), 6 states have call predecessors, (134), 6 states have call successors, (134) Word has length 410 [2025-03-17 04:29:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:30,718 INFO L225 Difference]: With dead ends: 1690 [2025-03-17 04:29:30,718 INFO L226 Difference]: Without dead ends: 934 [2025-03-17 04:29:30,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=267, Unknown=0, NotChecked=0, Total=420 [2025-03-17 04:29:30,721 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 734 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:30,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 786 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 04:29:30,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2025-03-17 04:29:30,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 910. [2025-03-17 04:29:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 708 states have (on average 1.4745762711864407) internal successors, (1044), 708 states have internal predecessors, (1044), 189 states have call successors, (189), 12 states have call predecessors, (189), 12 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 04:29:30,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1422 transitions. [2025-03-17 04:29:30,785 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1422 transitions. Word has length 410 [2025-03-17 04:29:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:30,785 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1422 transitions. [2025-03-17 04:29:30,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 6 states have call successors, (133), 3 states have call predecessors, (133), 7 states have return successors, (134), 6 states have call predecessors, (134), 6 states have call successors, (134) [2025-03-17 04:29:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1422 transitions. [2025-03-17 04:29:30,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2025-03-17 04:29:30,789 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:30,790 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:30,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 04:29:30,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:30,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:30,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:30,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1934213496, now seen corresponding path program 1 times [2025-03-17 04:29:30,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:30,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323084630] [2025-03-17 04:29:30,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:30,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:31,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:31,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:31,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:31,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 153 proven. 33 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2025-03-17 04:29:31,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:31,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323084630] [2025-03-17 04:29:31,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323084630] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:29:31,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561798621] [2025-03-17 04:29:31,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:31,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:31,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:31,901 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:29:31,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 04:29:32,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:32,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:32,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:32,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:32,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 04:29:32,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:29:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 4908 proven. 33 refuted. 0 times theorem prover too weak. 2871 trivial. 0 not checked. [2025-03-17 04:29:32,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 04:29:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 153 proven. 33 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2025-03-17 04:29:32,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561798621] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 04:29:32,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 04:29:32,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-03-17 04:29:32,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944828426] [2025-03-17 04:29:32,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 04:29:32,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 04:29:32,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:32,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 04:29:32,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-03-17 04:29:32,845 INFO L87 Difference]: Start difference. First operand 910 states and 1422 transitions. Second operand has 13 states, 13 states have (on average 13.076923076923077) internal successors, (170), 13 states have internal predecessors, (170), 6 states have call successors, (149), 3 states have call predecessors, (149), 6 states have return successors, (149), 6 states have call predecessors, (149), 6 states have call successors, (149) [2025-03-17 04:29:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:33,255 INFO L93 Difference]: Finished difference Result 1721 states and 2673 transitions. [2025-03-17 04:29:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 04:29:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.076923076923077) internal successors, (170), 13 states have internal predecessors, (170), 6 states have call successors, (149), 3 states have call predecessors, (149), 6 states have return successors, (149), 6 states have call predecessors, (149), 6 states have call successors, (149) Word has length 410 [2025-03-17 04:29:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:33,262 INFO L225 Difference]: With dead ends: 1721 [2025-03-17 04:29:33,262 INFO L226 Difference]: Without dead ends: 940 [2025-03-17 04:29:33,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2025-03-17 04:29:33,265 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 439 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:33,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 635 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 04:29:33,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2025-03-17 04:29:33,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 922. [2025-03-17 04:29:33,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 717 states have (on average 1.4644351464435146) internal successors, (1050), 717 states have internal predecessors, (1050), 189 states have call successors, (189), 15 states have call predecessors, (189), 15 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 04:29:33,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1428 transitions. [2025-03-17 04:29:33,314 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1428 transitions. Word has length 410 [2025-03-17 04:29:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:33,315 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1428 transitions. [2025-03-17 04:29:33,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.076923076923077) internal successors, (170), 13 states have internal predecessors, (170), 6 states have call successors, (149), 3 states have call predecessors, (149), 6 states have return successors, (149), 6 states have call predecessors, (149), 6 states have call successors, (149) [2025-03-17 04:29:33,315 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1428 transitions. [2025-03-17 04:29:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2025-03-17 04:29:33,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:33,317 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:33,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 04:29:33,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:33,518 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:33,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash 36725961, now seen corresponding path program 1 times [2025-03-17 04:29:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:33,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734908480] [2025-03-17 04:29:33,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:33,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:33,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 410 statements into 1 equivalence classes. [2025-03-17 04:29:33,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 410 of 410 statements. [2025-03-17 04:29:33,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:33,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2025-03-17 04:29:33,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:33,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734908480] [2025-03-17 04:29:33,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734908480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:29:33,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:29:33,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 04:29:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309560811] [2025-03-17 04:29:33,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:29:33,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 04:29:33,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:33,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 04:29:33,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 04:29:33,692 INFO L87 Difference]: Start difference. First operand 922 states and 1428 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-03-17 04:29:33,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:33,749 INFO L93 Difference]: Finished difference Result 1697 states and 2635 transitions. [2025-03-17 04:29:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 04:29:33,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 410 [2025-03-17 04:29:33,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:33,755 INFO L225 Difference]: With dead ends: 1697 [2025-03-17 04:29:33,755 INFO L226 Difference]: Without dead ends: 922 [2025-03-17 04:29:33,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 04:29:33,757 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 219 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:33,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 318 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 04:29:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2025-03-17 04:29:33,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2025-03-17 04:29:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 717 states have (on average 1.4337517433751743) internal successors, (1028), 717 states have internal predecessors, (1028), 189 states have call successors, (189), 15 states have call predecessors, (189), 15 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2025-03-17 04:29:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1406 transitions. [2025-03-17 04:29:33,804 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1406 transitions. Word has length 410 [2025-03-17 04:29:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:33,804 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1406 transitions. [2025-03-17 04:29:33,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2025-03-17 04:29:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1406 transitions. [2025-03-17 04:29:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2025-03-17 04:29:33,807 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:33,807 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:33,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 04:29:33,807 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:33,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash 434202788, now seen corresponding path program 1 times [2025-03-17 04:29:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:33,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941698473] [2025-03-17 04:29:33,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:33,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 411 statements into 1 equivalence classes. [2025-03-17 04:29:35,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 411 of 411 statements. [2025-03-17 04:29:35,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:35,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 264 proven. 102 refuted. 0 times theorem prover too weak. 7446 trivial. 0 not checked. [2025-03-17 04:29:36,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:29:36,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941698473] [2025-03-17 04:29:36,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941698473] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:29:36,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811965913] [2025-03-17 04:29:36,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:36,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:36,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:36,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:29:36,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 04:29:36,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 411 statements into 1 equivalence classes. [2025-03-17 04:29:37,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 411 of 411 statements. [2025-03-17 04:29:37,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:37,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:37,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-17 04:29:37,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:29:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 4580 proven. 186 refuted. 0 times theorem prover too weak. 3046 trivial. 0 not checked. [2025-03-17 04:29:38,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 04:29:39,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811965913] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:29:39,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 04:29:39,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16] total 19 [2025-03-17 04:29:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114934435] [2025-03-17 04:29:39,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 04:29:39,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 04:29:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:29:39,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 04:29:39,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2025-03-17 04:29:39,424 INFO L87 Difference]: Start difference. First operand 922 states and 1406 transitions. Second operand has 19 states, 19 states have (on average 9.0) internal successors, (171), 18 states have internal predecessors, (171), 6 states have call successors, (92), 5 states have call predecessors, (92), 7 states have return successors, (92), 6 states have call predecessors, (92), 6 states have call successors, (92) [2025-03-17 04:29:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:29:49,334 INFO L93 Difference]: Finished difference Result 2339 states and 3503 transitions. [2025-03-17 04:29:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-17 04:29:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.0) internal successors, (171), 18 states have internal predecessors, (171), 6 states have call successors, (92), 5 states have call predecessors, (92), 7 states have return successors, (92), 6 states have call predecessors, (92), 6 states have call successors, (92) Word has length 411 [2025-03-17 04:29:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:29:49,345 INFO L225 Difference]: With dead ends: 2339 [2025-03-17 04:29:49,345 INFO L226 Difference]: Without dead ends: 1588 [2025-03-17 04:29:49,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2025-03-17 04:29:49,349 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 435 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2025-03-17 04:29:49,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1888 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2025-03-17 04:29:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2025-03-17 04:29:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1516. [2025-03-17 04:29:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1238 states have (on average 1.4410339256865912) internal successors, (1784), 1240 states have internal predecessors, (1784), 243 states have call successors, (243), 34 states have call predecessors, (243), 34 states have return successors, (243), 241 states have call predecessors, (243), 243 states have call successors, (243) [2025-03-17 04:29:49,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2270 transitions. [2025-03-17 04:29:49,434 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2270 transitions. Word has length 411 [2025-03-17 04:29:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:29:49,435 INFO L471 AbstractCegarLoop]: Abstraction has 1516 states and 2270 transitions. [2025-03-17 04:29:49,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.0) internal successors, (171), 18 states have internal predecessors, (171), 6 states have call successors, (92), 5 states have call predecessors, (92), 7 states have return successors, (92), 6 states have call predecessors, (92), 6 states have call successors, (92) [2025-03-17 04:29:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2270 transitions. [2025-03-17 04:29:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2025-03-17 04:29:49,438 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:29:49,438 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:29:49,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 04:29:49,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:49,639 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:29:49,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:29:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1678795627, now seen corresponding path program 1 times [2025-03-17 04:29:49,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:29:49,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361815661] [2025-03-17 04:29:49,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:49,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:29:49,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 412 statements into 1 equivalence classes. [2025-03-17 04:29:50,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 412 of 412 statements. [2025-03-17 04:29:50,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:50,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 04:29:50,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775393037] [2025-03-17 04:29:50,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:29:50,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:29:50,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:29:50,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:29:50,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 04:29:50,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 412 statements into 1 equivalence classes. [2025-03-17 04:29:50,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 412 of 412 statements. [2025-03-17 04:29:50,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:29:50,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:29:50,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-17 04:29:50,780 INFO L279 TraceCheckSpWp]: Computing forward predicates...